Valve reseater



- Nov. 3, 1925- 1,560, 8

H. H. FINGERLE VALVE RESEATER Filed Jan. 8. 1924 2 sheets-Sheet l INVENTOR Hmirqerle v ATTORNEY Patented Nov. 3, 1925.

1 1,560,045 PATENT OFFICE.-

HERMAN H. FINGERLE, OF NEW YORK, N. Y.

VALVE RESEATER.

Application filed January 8, 1924. Serial No. 684,938.

To all whom it may concern.

Be it known that I, HERMAN H. FINGERLE, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Valve Rese-aters, of which the following is a speci- :fication.

This invention relates to valve reseaters,

and the main object is to provide a grinding and milling device suitable for repairing leaky steam or water cocks or valve seats without dismounting the same from their installation. The device enables any one to repair valve seats in a very short time without dismounting or remounting on i a lathe. This results not only in a' saving of time and interruption of work, but, in addition, absolute precision of refacing the valve seats is accomplished.

Another object is to provide a reseating device comprising an adjustable milling spindle in which adjustment of the spindle is effected rapidly and without screwing. These valve reseaters presented on the drawing in several modifications are provided with screw bases for general type of work, the bases being precise and self-centering.

These and other objects will become apparent in the description below, in which characters of reference refer to like-named parts of the drawing.

Referring briefly to the drawing, Figure 1 is a sectional elevational view thru a valve reseating apparatus.

Figure 2 is a bottom plan view of the same. 1

Figure 3 is a sectional elevation View if thru the chuck body, and is taken on line 33 of Figure 1.

Flgure 4: is a front elevational view of the valve reseater, illustrated 1n Flgure 1, showing the same 1n posltion for refacing the valve.

Figure 5 1s a fragmentary elevational view of a spigot, showing the thread base for supporting one of the modified types of valve reseaters on an external thread.

Figure 6 IS a sectional elevational vlew thru a modified typeof valve reseater,showing the same in position to face the valve surface of aglobe valve.

Figure 7 is a bottom plan view of the face plate used for anchoring the valve reseating device to a globe valve.

Figure 8 is bottom plan view of the locking member of the threaded sleeve by means of which the threaded base is at- 'tached to the reseating device.

Figure 9 is a top plan view of the upper portion of the threaded base.

Figure 10 is a sectional elevational view of the simplest form of valve reseating device used for reseating cocks and spigots.

Referring in detail to the drawing, the numeral 10 indicates the body of the valve reseater. This vbody is provided with a conical top 11, in which slits 12 are provided. Below the conical portion, threads 13 are formed. At the lower end of said body, a flange 14 is provided integral therewith, the face of said flange being provided with a spiral thread 15. An annular casing 16 is rotatably mounted at the lowerend of said body and encloses the flange 14. Another casing 17, a duplicate of member v16 is rigidly attached to the latter and has radial slots therein in which jaws .18 are slidably mounted, the upper face of said jaws having teeth -19 thereon which engage the spiral threads 15 on the flange 14. The main body 10 has an opening passing longitudinally and axially therethru. This opening rotatably receives a spindle 21, the spindle being movable longitudinally in the body. The upper end of said spindle has a reduced periphery 22 which forms a shoulder23 intermediate the length of the spindle, and .upon said shoulder a coil spring 24 is seated. At the upper end of the reduced position of the spindle, a square length 25 is provided on which a crank handle .26 is mounted, the crank chan- .the' upper portion of the body beneath the cap has similar knurled surfaces 32 which serve a similar purpose. The extreme lower end of the spindle is, provided with a facing flange 3,3 andhas an axial threaded hole into which threaded stem 34 may be inserted. Said threaded stem has a lowthe upper end of a spindle 59, a hand wheel erguide stem 35 and a shoulder flange 36 near its upper end serves to retain a milling cutter 37 or similar article in place on the stem. The milling cutter and stem may be interchanged with a lapping tool 38 after a new seat has been formed on a valve. The modified form shown in Figure 6 is similar in most respects to the type just described and the same numerals will be used to indicate the corresponding parts. At the lower end of the modified type, however, a flange 39 below which a thread 40 is formed, encircles the lower portion of the body and is knurled. The threads 40 on said body engage similar internal threads 41 on a knurled cap 42, this knurled cap havin' an axial annular opening 43 and a pair 0 diametrically opposed symmetrical arcuate openings 44 communicating with the larger opening 43, thus dividing the flange 45 of said cap into two opposing sections. Adjacent one section of the flange, a. pin 46 extends radially inward from the periphery of the cap and its purpose will be more fully hereinafter described. A screw base 47 provided with a knurled flange 48 has two opposing blades 49 extending downwardly from its upper end, said blades being of such size as to register in the openings 44 between the flange sections 45 of the cap 42. The lower end of the screw base is formed into a conical sleeve on the surface of which tapering threads 50 are provided. The lower end of the spindle of the device shown in Figure 6 differs somewhat from the other type shown 1n Figure 1 in as' much as the spindle used with this device has a threaded stud 51 thereon which registers in an opening of a facing or milling cutter 52, the latter being retained by a nut 53. A relatively large annular face plate 54 is provided with this type of valve grinder and is provided with internal threads 55 which engage the tapering threads 50' of the base 47 This face plate has spiral slots 56 which are used when securing the valve reseating device to a globe valve 57, the face plate being mounted rigidly in place on the globe valve by bolts 58 which pass thru spiral slots 56. The valve reseater shown in Figure 10 differs slightly in various respects from those just described, but the spindle 59 is of substantially the same outlineand has a threaded hole 60 at its lower end which receives a centering stud 61 on which a milling cutter 62 is mounted. The adjusting sleeve 63 has its exterior length threaded and is provided with the usual knurled flange 64 at its upper end. The threads of said sleeve engage internal threads of a threaded base 65 having an intermediate knurled flange 66 on both sides of which threaded conical surfaces 67 and 68 are prbvided. At

69 is retained in place by a nut 70. The type of device shown in Figure 10 is used when reseating or refacing the valve seats on spigots or small cocks 71 which are provided with internal threads. Vhen external threads are formed on'these spigots, a thread base 72 of slightly different design is used. This thread base has a threaded axial opening 73 in which the threaded sleeve 63 is engageable. This base has an internally threaded conical opening 74 entering from its opposite end which are adapted to engage external threads 75 of varying diameters on a cook or spigot 71.

The various forms of valve reseaters just described are of substantially the same design, but in order to permit application of the same to various classes of work, an attaching means to the work causes slight changes in the design. here a valve is to be refaced and the work is not provided with holes, the device shown in Figure 1 is.

used. As previously stated, this device has jaws which are adjustable by rotating 'the spiral threads 15, the latter moving the jaws inwardly or outwardly thru the medium of the teeth 19. These jaws are provided with shoulders which may engage. the corner of an article of work such as shown in broken hnes m Figure 4, by manipulation thru.

grasping the knurled portions 32 and rotating the body 10. hen the device has been centered in this way, adjustment of the spindle is perhaps necessary. This is accomplished by unscrewing the cap 30 to permit the resilient conicaltop 11 to expand so that free longitudinal movement of the sleeve 28 is permitted. The latter is urged down wardly until the face of the cutter 37 contacts with the surface of the valve to be re faced and a slightly greater depression of the sleeve is then given in order to permit the spring 24 to retain the milling cutter 37 in cutting contact with the valve seat. The cap 31 is then tightened so that the resilient top 11 clamps the sleeve 28 in place. By rotating the crank 26 in the proper direction, the valve seat is refaced. lVhere globe valves or the like are to be refaced, the face plate such as that shown in Figure 7, is used in order to secure the valve reseater to the work as globe valves are usually provided with holes in their flanges. These face plates are threaded at 55 in order to receive the threaded base 47. These thread bases have conical diameters of various sizes which are preferably made detachable from the body in a ready manner. Applicant accomplishes this by providing a threaded cap which secures to the lower end of the body in which arouate openings 44 separate flanges 45. At the upper end of the threaded base 48, blades 49 are provided which are of smaller area than the arcnate openings 44 and may he slipped upwardly thru these openings. The threaded base is then rotated so that the blades 49 are rotated and are superposed in their locked position above the flanges 45, the pin 46 serving as a stop to the blades of the" threaded base. The device shown in Figure 10 is used similar to the other forms of valve reseaters, but in this case, the base may be reversed to adapt the device to various sizes of thread diameters. The remaining parts of this device function in the same manner as the other forms.

I claim 1. A valve reseater comprising a cylindrical body having a conical upper end, said conical end being slitted to give resiliency thereto, a sleeve insertable in said body, a threaded cap adapted to secure the sleeve in place, a spindle rotatable in said sleeve and body, a crank on said spindle, a spring on said spindle beneath the sleeve and adapted to urge said spindle downwardly, a hollow threaded base, the spindle passing thru said threaded base, diametrically opposed arcuate blades on said threaded base, and means, engaging said blades for securing the thread base to the body.

2. A valve reseater comprising a cylindrical body having a conical upper end, said conical end being slitted to give resiliency thereto, a sleeve insertable in said body, a threaded cap adapted to secure the sleeve in place, a spindle rotatable in said sleeve and body, a crank on said spindle, a spring on said spindle beneath the sleeve and adapted to urge said spindle downwardly, a hollow threaded base, the spindle passing thru said threaded base, diametrically opposed arcuate blades on said threaded base, a cap engaging said body, an annular flange on said cap, said flange being divided into sections by diametrically opposite arcuate openings, the openings in the cap being large enough to permit insertion of the blade on the thread base, said blades when inserted thru said openings and rotated being adapted to lock said thread base to the body, and a milling cutter at the lower end of the spindle.

3. A valve reseater comprising a cylindrical body having a conical upper end, said conical end being slitted to give resiliency thereto, a sleeve insertable in said body, a threaded cap adapted to secure the sleeve in place, a spindle rotatable in said sleeve and body, a crank on said spindle, a spring on said spindle beneath the sleeve and adapted to urge said spindle downwardly, a hollow threaded base, the spindle passing thru said threaded base, diametrically opposed arcuate blades on said threaded base, a cap engaging said body, an annular flange on said cap, said flange being divided into sections by diametrically opposite arcuate openings, the openings in the cap beinglarge enough to permit insertion of the blade on the thread base, said blades when inserted thru said openings and rotated being adapted to lock said thread base to the body, a stop pin above one of said flange sections, said pin adapted to limit rotation of the conical threaded portion on said base, and a face plate adapted to receive the threaded portion of the base for supporting the valve reseater above the work.

In testimony whereof I aflix my signature.

HERMAN H. FINGERLE.

blades, a 

